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Han K, Ji Y, Hu Q, Wu Q, Li D, Zhou A. Phase transition and electrochemical properties of S-functionalized MXene anodes for Li-ion batteries: a first-principles investigation. Phys Chem Chem Phys 2024; 26:18030-18040. [PMID: 38894700 DOI: 10.1039/d4cp01928h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
The advancement of anode materials for achieving high energy storage is a crucial topic for high-performance Li-ion batteries (LIBs). Here, first-principles calculations were used to conduct a thorough and systematic investigation into lithium storage properties of MXenes with new S functional groups as LIB anode materials. Density of states, diffusion energy barriers, open circuit voltages and storage capacities were calculated to comprehensively evaluate the lithium storage properties of S-functionalized MXenes. Based on the computational results, Ti2CS2 and V2CS2 were selected as excellent candidates from ten M2CS2 MXenes. The diffusion energy barriers of M2CS2 within the range of 0.26-0.32 eV are lower than those of M2CO2 and M2CF2, indicating that M2CS2 anodes exhibit faster charge/discharge rates. By examining the stable crystal structures and comparing atomic positions before and after Li adsorptions, structural phase transitions during Li-ion adsorptions could happen for nearly all M2CS2 MXenes. The phase transitions predicted were directly observed using ab initio molecular dynamic simulations. The cycle stability, storage capacity and other lithium storage properties were enhanced by the reversible structural phase transition.
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Affiliation(s)
- Kun Han
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China.
| | - Yuhuan Ji
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China.
| | - Qianku Hu
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China.
| | - Qinghua Wu
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China.
| | - Dandan Li
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China.
| | - Aiguo Zhou
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China.
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Mao X, He Y, Li C, Li H, Gou R, Liu H, Zhao Y, Chen W, Yan J, Yuan X, Wu G. Glycine-Ti 3C 2T x Hybrid Material Improves the Electrochemical Corrosion Resistance of a Water-Borne Epoxy Coating. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:11817-11827. [PMID: 38760325 DOI: 10.1021/acs.langmuir.4c01546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2024]
Abstract
Improving the dispersibility and compatibility of nanomaterials in water-borne epoxy resins is an important means to improve the protection ability and corrosion resistance of coatings. In this study, glycine-functionalized Ti3C2Tx (GT) was used to prepare an epoxy composite coating. The results of Fourier transform infrared spectroscopy and X-ray diffraction showed that glycine was successfully modified. The scanning electron microscopy and transmission electron microscopy results showed that the aggregation of Ti3C2Tx was alleviated. Electrochemical impedance spectroscopy test results show that, after 60 days of immersion, GT coating still shows the best protection performance, and the composite coating |Z|f = 0.01 Hz is 3 orders of magnitude higher than that of the pure epoxy coating. This is mainly because, after adding glycine, the -COOH group on the surface of glycine binds to the -OH group on the surface of Ti3C2Tx, improving the aggregation of Ti3C2Tx itself. At the same time, the -NH group of glycine can also participate in the curing reaction of epoxy resin to strengthen the bonding strength between the coating and the metal. The good dispersion of GT in epoxy resin makes it fill the pores and holes left by epoxy resin curing and strengthen the corrosion resistance. The easy availability and green properties of glycine provide a simple and environmentally friendly method for the modification of Ti3C2Tx.
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Affiliation(s)
- Xiaoyu Mao
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, People's Republic of China
- State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, People's Republic of China
| | - Yi He
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, People's Republic of China
- State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, People's Republic of China
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Chengdu, Sichuan 610500, People's Republic of China
| | - Changhua Li
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, People's Republic of China
- State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, People's Republic of China
| | - Hongjie Li
- Research Institute of Natural Gas Technology, Southwest Oil & Gasfield Company, China National Petroleum Corporation, 218 Tianyan Road, Tianfu New District, Chengdu, Sichuan 610051, People's Republic of China
| | - Rui Gou
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, People's Republic of China
- State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, People's Republic of China
| | - Haitao Liu
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, People's Republic of China
- State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, People's Republic of China
| | - Yang Zhao
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, People's Republic of China
- State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, People's Republic of China
| | - Wen Chen
- Research Institute of Natural Gas Technology, Southwest Oil & Gasfield Company, China National Petroleum Corporation, 218 Tianyan Road, Tianfu New District, Chengdu, Sichuan 610051, People's Republic of China
| | - Jing Yan
- Research Institute of Natural Gas Technology, Southwest Oil & Gasfield Company, China National Petroleum Corporation, 218 Tianyan Road, Tianfu New District, Chengdu, Sichuan 610051, People's Republic of China
| | - Xi Yuan
- Research Institute of Natural Gas Technology, Southwest Oil & Gasfield Company, China National Petroleum Corporation, 218 Tianyan Road, Tianfu New District, Chengdu, Sichuan 610051, People's Republic of China
| | - Guiyang Wu
- Research Institute of Natural Gas Technology, Southwest Oil & Gasfield Company, China National Petroleum Corporation, 218 Tianyan Road, Tianfu New District, Chengdu, Sichuan 610051, People's Republic of China
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Koudahi MF, Frąckowiak E. Ti 3C 2T x MXene as Intriguing Material for Electrochemical Capacitor. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2307165. [PMID: 38098311 DOI: 10.1002/smll.202307165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 11/13/2023] [Indexed: 05/25/2024]
Abstract
This study provides meaningful insight into the charge storage in Ti3C2Tx MXene (M-transition metal, X-carbon, T-Cl, F, O) for electrochemical capacitor (EC) application. The experiments show that this 2D material is especially adapted for the hydrogen electrosorption under negative polarization. It is found that hydrogen bonding to the Ti3C2Tx surface occurs through interactions of various strength. Different mechanisms are suggested to explain the nature of H stored at the electrode/electrolyte interface depending on pH and potential range. For the negative potentials, both capacitive and faradaic currents are involved, and the electrode can operate in a relatively wide range. On the other hand, the narrow range of positive potentials limits whole voltage of EC. Such charge disproportion has a major impact on the performance failure of symmetric MXene-based ECs. New design of MXene cells with a wide operating voltage is introduced. To equalize the charge storage of both electrodes, the positive Ti3C2Tx electrode is replaced by the porous carbon (BP2000) with a wide working potential and a good capacitive response. Thus, EC operating voltage is considerably expanded to 1.3, 1.4, 2 V in acidic, basic, neutral medium, respectively. During cycling tests at 1 A g-1, the asymmetric cell MXene/BP2000 maintains 80% of initial capacitance after 22 000 cycles.
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Affiliation(s)
- Masoud Foroutan Koudahi
- Institute of Chemistry and Technical Electrochemistry, Poznan University of Technology, Poznan, 60-965, Poland
| | - Elżbieta Frąckowiak
- Institute of Chemistry and Technical Electrochemistry, Poznan University of Technology, Poznan, 60-965, Poland
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Sakhraoui T, Karlický F. Prediction of induced magnetism in 2D Ti 2C based MXenes by manipulating the mixed surface functionalization and metal substitution computed by xTB model Hamiltonian of the DFTB method. Phys Chem Chem Phys 2024; 26:12862-12868. [PMID: 38623885 DOI: 10.1039/d3cp05665a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
We employed the recently developed density functional tight binding (DFTB) method's Hamiltonian, GFN1-xTB, for modeling the mixed termination in Ti2C MXenes, namely three types of termination by combining -O and -OH, -O and -F, and -F and -OH. We demonstrated that the approach yields reliable predictions for the electronic and magnetic properties of such MXenes. The first highlighted result is that the mixed surface functionalization in Ti2CAxBy MXenes induces spin polarization with diverse magnetic alignments, including ferromagnetism and two types of antiferromagnetism. We further identified the magnetic alignment for the investigated MXene in terms of the compositions of the terminal groups. Moreover, the effect of the transition metal (Ti) substituted by the Sc atom on the electronic and magnetic properties was also investigated. We found that the studied systems maintain the magnetism and the metallic characteristics. A magnetic transition from antiferromagnetic (AFM) to ferrimagnetic (FiM) ordering was found for ScTi15C8F8(OH)8 and ScTi15C8F12(OH)4 compounds. Finally, we proved that incorporating the Sc atom into the lattice of Ti2CO2 and the mixed surface termination in Ti2CAxBy is an effective strategy to induce magnetism. Our study may provide a new potential application for designing MXene-based spintronics.
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Affiliation(s)
- Taoufik Sakhraoui
- Department of Physics, Faculty of Science, University of Ostrava, 701 03 Ostrava, Czech Republic.
| | - František Karlický
- Department of Physics, Faculty of Science, University of Ostrava, 701 03 Ostrava, Czech Republic.
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Zhang H, Wang G, Beshiwork BA, Teketel BS, Li B, Lin B. Janus MXene nanosheets with a strain-induced reversible magnetic state transition for storing information without electricity. Chem Commun (Camb) 2024; 60:4577-4580. [PMID: 38573313 DOI: 10.1039/d4cc00112e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2024]
Abstract
The application of strain induces a transition in the ground-state magnetic configuration of Janus TiVC MXene from A-AFM to FM. A new system and method of solid-state disk information storage without electricity is developed based on the as-discovered reversible magnetic state transition in TiVC, which can achieve efficient storage of information in extremely harsh conditions.
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Affiliation(s)
- Hengyue Zhang
- School of Mechanical and Electrical Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China.
| | - Guoqing Wang
- School of Mechanical and Electrical Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China.
- The 5th Electronics Research Institute, Ministry of Industry and Information Technology, Guangzhou 511370, China
| | - Bayu Admasu Beshiwork
- School of Mechanical and Electrical Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China.
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, China
| | - Birkneh Sirak Teketel
- School of Mechanical and Electrical Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China.
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, China
| | - Baihai Li
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, China
| | - Bin Lin
- School of Mechanical and Electrical Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China.
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, China
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Han G, Li XF, Berbille A, Zhang Y, Luo X, Liu L, Li L, Wang ZL, Zhu L. Enhanced Piezoelectricity of MAPbI 3 by the Introduction of MXene and Its Utilization in Boosting High-Performance Photodetectors. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2313288. [PMID: 38537247 DOI: 10.1002/adma.202313288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 03/01/2024] [Indexed: 04/04/2024]
Abstract
Recently, perovskite photodetectors (PDs) are risen to prominence due to substantial research interest. Beyond merely tweaking the composition of materials, a cutting-edge advancement lies in leveraging the innate piezoelectric polarization properties of perovskites themselves. Here, the investigation shows utilizing Ti3C2Tx, a typical MXene, as an intermediate layer for significantly boosting the piezoelectric property of MAPbI3 thin films. This improvement is primarily attributed to the enhanced polarization of the methylammonium (MA+) groups within MAPbI3, induced by the OH groups present in Ti3C2Tx. A flexible PD based on the MAPbI3/MXene heterostructure is then fabricated. The new device is sensitive to a wide range of wavelengths, displays greatly enhanced performance owing to the piezo-phototronic coupling. Moreover, the device is endowed with a greatly reduced response time, down to millisecond level, through the pyro-phototronic effect. The characterization shows applying a -1.2% compressive strain on the PD leads to a remarkable 102% increase in the common photocurrent, and a 76% increase in the pyro-phototronic current. The present work reveals how the emerging piezo-phototronic and pyro-phototronic effects can be employed to design high-performance flexible perovskite PDs.
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Affiliation(s)
- Gaosi Han
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, P. R. China
- School of Nanoscience and Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xiao-Fen Li
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, P. R. China
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
| | - Andy Berbille
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, P. R. China
- School of Nanoscience and Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yueming Zhang
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, P. R. China
- School of Nanoscience and Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xiongxin Luo
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, P. R. China
- School of Nanoscience and Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Lindong Liu
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, P. R. China
| | - Longyi Li
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, P. R. China
- School of Nanoscience and Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Zhong Lin Wang
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, P. R. China
- School of Nanoscience and Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
- Yonsei Frontier Lab, Yonsei University, Seoul, 03722, Republic of Korea
- School of Material Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia, 30332, USA
| | - Laipan Zhu
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, P. R. China
- School of Nanoscience and Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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Zhou M, Shen Y, Lv L, Zhang Y, Meng X, Yang X, He Q, Zhang B, Pang L, E P, Zhou Z. Lattice matching and halogen regulation for synergistically induced large Li and Na storage by halogenated MXene V 3C 2Cl 2. Phys Chem Chem Phys 2024; 26:7554-7562. [PMID: 38362637 DOI: 10.1039/d3cp05878f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
Suffering from the formation of metal-ion dendrites and low storage capacity, MXene materials exhibit unsatisfactory performance in Li and Na storage. In this study, we demonstrate that the MXene V3C2Cl2 structure can induce uniform Li and Na deposition. This is achieved through coherent heterogeneous interface reconstruction and regulated ion tiling by halogen surface termination. The high lattice matching (91% and 99%) between MXenes and Li/Na, along with positive Cl terminal regulation, guides Li/Na ions to nucleate uniformly on the V3C2Cl2 MXene matrix and grow in a planar manner. Cl termination proves effective in regulating Li/Na ions due to its moderate adsorption and diffusion coefficients. Furthermore, upon adsorption onto the Cl-terminated V3C2Cl2 monolayer, Li4 and Na4 clusters undergo dissociation, favoring uniform adsorption over cluster adsorption. V3C2Cl2 MXenes exhibit impressive Li/Na storage capacities of 434.07 mA h g-1 for Li and 217.03 mA h g-1 for Na, surpassing the Li storage capacity of Ti3C2Cl2 by three-fold and the Na storage capacity of V2C by 1.4 times. This study highlights the regulatory role of Cl surface terminals in dendrite formation and Li/Na ion deposition, with potential applications to other metal-ion storage electrodes.
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Affiliation(s)
- Min Zhou
- School of Physics, Harbin Institute of Technology, Harbin 150001, P. R. China.
| | - Yanqing Shen
- School of Physics, Harbin Institute of Technology, Harbin 150001, P. R. China.
- Heilongjiang Provincial Key Laboratory of Plasma Physics and Application Technology, Harbin Institute of Technology, Harbin 150001, P. R. China
| | - LingLing Lv
- School of Physics, Harbin Institute of Technology, Harbin 150001, P. R. China.
| | - Yu Zhang
- School of Physics, Harbin Institute of Technology, Harbin 150001, P. R. China.
| | - Xianghui Meng
- School of Physics, Harbin Institute of Technology, Harbin 150001, P. R. China.
| | - Xin Yang
- School of Physics, Harbin Institute of Technology, Harbin 150001, P. R. China.
| | - Qirui He
- School of Physics, Harbin Institute of Technology, Harbin 150001, P. R. China.
| | - Bing Zhang
- School of Physics, Harbin Institute of Technology, Harbin 150001, P. R. China.
| | - Long Pang
- School of Physics, Harbin Institute of Technology, Harbin 150001, P. R. China.
- Laboratory for Space Environment and Physical Sciences, Harbin Institute of Technology, Harbin, 150001, China
| | - Peng E
- School of Physics, Harbin Institute of Technology, Harbin 150001, P. R. China.
- Laboratory for Space Environment and Physical Sciences, Harbin Institute of Technology, Harbin, 150001, China
| | - Zhongxiang Zhou
- School of Physics, Harbin Institute of Technology, Harbin 150001, P. R. China.
- Heilongjiang Provincial Key Laboratory of Plasma Physics and Application Technology, Harbin Institute of Technology, Harbin 150001, P. R. China
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Chu YZ, Hoover M, Ward P, Lau KC. First-principles study of MXene properties with varying hydrofluoric acid concentration. iScience 2024; 27:108784. [PMID: 38292429 PMCID: PMC10826293 DOI: 10.1016/j.isci.2024.108784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 08/30/2023] [Accepted: 01/02/2024] [Indexed: 02/01/2024] Open
Abstract
With varying hydrofluoric acid (HF) concentrations under three etching conditions, we presented a comparative study of the effects of both the ordered and randomly ternary mixed terminated Ti3C2Tx surfaces with a wide variation of O/OH/F stoichiometry on the thermodynamic stability and electronic properties. Regardless of the HF concentration, an OH-rich surface is found to be thermodynamically stable and the electrical conductivity of Ti3C2Tx is substantially affected by the OH concentration. The charge density difference and electron localization function demonstrated a significant electron localization at the hydroxyl group on the O/OH/F mixed terminated surface, which could yield a locally induced dipole on the surface that renders favorable reaction sites on the functionalized surface. In addition, a large tunability in the work function (ΔΦ ∼ 3.5 eV) is predicted for Ti3C2Tx. These findings provide a pathway for strategically tuning the electronic and structural properties of Ti3C2 MXenes etched with HF.
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Affiliation(s)
- Yi Zhi Chu
- Department of Physics, Michigan Technological University, Houghton, MI 49931, USA
- Department of Physics and Astronomy, California State University, Northridge, CA 91330, USA
| | - Megan Hoover
- Advanced Modeling and Simulations, Savannah River National Laboratory, Aiken, SC 29803, USA
| | - Patrick Ward
- Materials Technology and Energy Division, Savannah River National Laboratory, Aiken, SC 29803, USA
| | - Kah Chun Lau
- Department of Physics and Astronomy, California State University, Northridge, CA 91330, USA
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Bashir T, Zhou S, Yang S, Ismail SA, Ali T, Wang H, Zhao J, Gao L. Progress in 3D-MXene Electrodes for Lithium/Sodium/Potassium/Magnesium/Zinc/Aluminum-Ion Batteries. ELECTROCHEM ENERGY R 2023. [DOI: 10.1007/s41918-022-00174-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
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10
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Rethinasabapathy M, Ghoreishian SM, Hwang SK, Han YK, Roh C, Huh YS. Recent Progress in Functional Nanomaterials towards the Storage, Separation, and Removal of Tritium. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2301589. [PMID: 37435972 DOI: 10.1002/adma.202301589] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 05/31/2023] [Accepted: 06/15/2023] [Indexed: 07/13/2023]
Abstract
Tritium is a sustainable next-generation prime fuel for generating nuclear energy through fusion reactions to fulfill the increasing global energy demand. Owing to the scarcity-high demand tradeoff, tritium must be bred inside a fusion reactor to ensure sustainability and must therefore be separated from its isotopes (protium and deuterium) in pure form, stored safely, and supplied on demand. Existing multistage isotope separation technologies exhibit low separation efficiency and require intensive energy inputs and large capital investments. Furthermore, tritium-contaminated heavy water constitutes a major fraction of nuclear waste, and accidents like the one at Fukushima Daiichi leave behind thousands of tons of diluted tritiated water, whose removal is beneficial from an environmental point of view. In this review, the recent progress and main research trends in hydrogen isotope storage and separation by focusing on the use of metal hydride (e.g., intermetallic, and high-entropy alloys), porous (e.g., zeolites and metal organic frameworks (MOFs)), and 2-D layered (e.g., graphene, hexagonal boron nitride (h-BN), and MXenes) materials to separate and store tritium based on their diverse functionalities are discussed. Finally, the challenges and future directions for implementing tritium storage and separation are summarized in the reviewed materials.
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Affiliation(s)
- Muruganantham Rethinasabapathy
- NanoBio High-Tech Materials Research Center, Department of Biological Science and Bioengineering, Inha University, 100 Inha-ro, Incheon, 22212, Republic of Korea
| | | | - Seung-Kyu Hwang
- NanoBio High-Tech Materials Research Center, Department of Biological Science and Bioengineering, Inha University, 100 Inha-ro, Incheon, 22212, Republic of Korea
| | - Young-Kyu Han
- Department of Energy and Materials Engineering, Dongguk University-Seoul, Seoul, 04620, Republic of Korea
| | - Changhyun Roh
- Decommissioning Technology Division, Korea Atomic Energy Research Institute (KAERI), Daejeon, 34057, Republic of Korea
- Nuclear Science and Technology, Quantum Energy Chemical Engineering, University of Science and Technology (UST), Daejeon, 34113, Republic of Korea
| | - Yun Suk Huh
- NanoBio High-Tech Materials Research Center, Department of Biological Science and Bioengineering, Inha University, 100 Inha-ro, Incheon, 22212, Republic of Korea
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Wu Q, Wang Z, Hu Q, Ji Y, Li D, Wang J, Xia Q, Wang L, Zhou A. Lithium storage performance enhanced by lithiation-induced structural phase transitions of fluorinated MXenes. Phys Chem Chem Phys 2023; 25:14406-14416. [PMID: 37183999 DOI: 10.1039/d3cp00974b] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Structural phase transitions in electrode materials of Li-ion batteries (LIBs) often occur along with Li-ion extraction/intercalation during charge and discharge processes. Lithiation-induced phase transition behaviors of two-dimensional fluorinated MXenes were investigated systematically by first-principles density functional calculations. The calculated results show that fluorine atoms in the nine MXenes studied moved from the FCC site (or HCP site for Ta2CF2) to the TOP site during Li adsorption. Further all the predicted phase transitions were confirmed by ab initio molecular dynamic simulations. The band structure, density of state, diffusion energy barrier, average voltage and storage capacity were calculated to evaluate the lithium storage properties of fluorinated MXenes, which revealed that V2CF2 and Ti2CF2 are the optimal candidates for LIB electrode materials. The structural phase transition led to improvements in the cycle stability, storage capacity, average voltage, and other lithium storage properties of the fluorinated MXenes.
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Affiliation(s)
- Qinghua Wu
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China.
| | - Zhe Wang
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China.
| | - Qianku Hu
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China.
| | - Yuhuan Ji
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China.
| | - Dandan Li
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China.
| | - Junkai Wang
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China.
| | - Qixun Xia
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China.
| | - Libo Wang
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China.
| | - Aiguo Zhou
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China.
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Sijuade AA, Eze VO, Arnett NY, Okoli OI. Vanadium MXenes materials for next-generation energy storage devices. NANOTECHNOLOGY 2023; 34:252001. [PMID: 36930968 DOI: 10.1088/1361-6528/acc539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 03/17/2023] [Indexed: 06/18/2023]
Abstract
Batteries and supercapacitors have emerged as promising candidates for next-generation energy storage technologies. The rapid development of new two-dimensional (2D) electrode materials indicates a new era in energy storage devices. MXenes are a new type of layered 2D transition metal carbides, nitrides, or carbonitrides that have drawn much attention because of their excellent electrical conductivity, electrochemical and hydrophilic properties, large surface area, and attractive topological structure. This review focuses on various synthesis methods to prepare vanadium carbide MXenes with and without etchants like hydrofluoric acid, lithium fluoride, and hydrochloric acid to remove the 'A' layers of the MAX phase. The goal is to demonstrate the utilization of a less toxic etching method to achieve MXenes of comparable properties to those prepared by traditional methods. The influence of intercalation on the effect of high interlayer spacing between the MXene layers and the performance of MXenes as supercapacitor and battery electrodes is also addressed in this review. Lastly, the gaps in the current knowledge for vanadium carbide MXenes in synthesis, scalability, and utilization in more energy storage devices were discussed.
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Affiliation(s)
- Ayomide Adeola Sijuade
- High-Performance Materials Institute, FAMU-FSU College of Engineering, Tallahassee, FL 32310, United States of America
| | - Vincent Obiozo Eze
- High-Performance Materials Institute, FAMU-FSU College of Engineering, Tallahassee, FL 32310, United States of America
| | - Natalie Y Arnett
- High-Performance Materials Institute, FAMU-FSU College of Engineering, Tallahassee, FL 32310, United States of America
| | - Okenwa I Okoli
- High-Performance Materials Institute, FAMU-FSU College of Engineering, Tallahassee, FL 32310, United States of America
- Herff College of Engineering, University of Memphis, Memphis, TN, 38111, United States of America
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13
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Hu Q, Ji Y, Li D, Wang Z, Han K, Wu Q, Wang J, Xia Q, Wang L, Zhou A. A systematic computational investigation of lithiation-induced structural phase transitions of O-functionalized MXenes. Phys Chem Chem Phys 2023; 25:9428-9436. [PMID: 36928729 DOI: 10.1039/d3cp00012e] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
Along with Li-ion extraction/intercalation during charge and discharge processes, structural phase transitions often occur in the electrode materials of Li-ion batteries (LIBs). By determining atomic positions before and after Li adsorptions, structural phase transitions of two-dimensional MXenes were investigated systematically using first-principles density functional calculations. The lithiation-induced phase transitions of ten M2C MXenes with oxygen groups can be divided into three types. No phase transitions occur for Ti-type MXenes including Ti2CO2, Zr2CO2 and Hf2CO2. The oxygens in Ta-type MXenes (Sc2CO2, Y2CO2, Nb2CO2 and Ta2CO2) move from one type of octahedral void to another type of octahedral void. However, for Mo-type MXenes including V2CO2, Cr2CO2 and Mo2CO2, the oxygens move from octahedral voids to tetrahedral voids. The mechanisms whether phase transitions happen or not are dependent on the sizes of M ions. Furthermore, all the predicted phase transitions were confirmed by ab initio molecular dynamics simulations. The calculated results of electron localization functions and Bader charge illustrate that there exist strong Coulomb interactions (ionic bonds) between Li and MXene surfaces. The band structure, diffusion energy barrier, open circuit voltage and storage capacity were calculated to evaluate the lithium storage properties of different MXenes, which reveals that V2CO2 and Cr2CO2 should be optimal candidates as electrode materials for LIBs.
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Affiliation(s)
- Qianku Hu
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China
| | - Yuhuan Ji
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China
| | - Dandan Li
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China
| | - Zhe Wang
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China
| | - Kun Han
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China
| | - Qinghua Wu
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China
| | - Junkai Wang
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China
| | - Qixun Xia
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China
| | - Libo Wang
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China
| | - Aiguo Zhou
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China
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14
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Das P, Thekkepat K, Lee YS, Lee SC, Bhattacharjee S. Computational design of novel MAX phase alloys as potential hydrogen storage media combining first principles and cluster expansion methods. Phys Chem Chem Phys 2023; 25:5203-5210. [PMID: 36723101 DOI: 10.1039/d2cp05587b] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Finding a suitable material for hydrogen storage under ambient atmospheric conditions is challenging for material scientists and chemists. In this work, using a first principles based cluster expansion approach, the hydrogen storage capacity of the Ti2AC (A = Al, Ti, Cr, Mn, Fe, Co, Ni, Cu, and Zn) MAX phase and its alloys was studied. We found that hydrogen is energetically stable in Ti-A layers in which the tetrahedral site consisting of one A atom and three Ti atoms is energetically more favorable for hydrogen adsorption than other sites in the Ti-A layer. Ti2CuC has the highest hydrogen adsorption energy than other Ti2AC phases. We find that the 83.33% Cu doped Ti2AlxCu1-xC alloy structure is both energetically and dynamically stable and can store 3.66 wt% hydrogen under ambient atmospheric conditions, which is higher than that stored by both Ti2AlC and Ti2CuC phases. These findings indicate that the hydrogen capacity of the MAX phase can be significantly improved by doping an appropriate atom species.
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Affiliation(s)
- Pritam Das
- Indo-Korea Science and Technology Center (IKST), Jakkur, Bengaluru 560065, India.
| | - Krishnamohan Thekkepat
- Electronic Materials Research Center, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea.
| | - Young-Su Lee
- Energy Materials Research Center, Korea Institute of Science and Technology, Seoul 02792, Seoul, Republic of Korea
| | - Seung-Cheol Lee
- Electronic Materials Research Center, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea.
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15
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Tsuppayakorn-Aek P, Bovornratanaraks T, Ahuja R, Luo W, Kotmool K. Hydrogen-induced phase stability and phonon mediated-superconductivity in two-dimensional van der Waals Ti 2C MXene monolayer. Phys Chem Chem Phys 2023; 25:2227-2233. [PMID: 36594791 DOI: 10.1039/d2cp05470a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Herein, we report the phase stability of the hydrogenated Ti2C MXene monolayer using an evolutionary algorithm based on density functional theory. We predict the existence of hexagonal Ti2CH, Ti2CH2, and Ti2CH4. The dynamic and energetic stabilities of the predicted structures are verified through phonon dispersion and formation energy, respectively. The electron-phonon coupling is carefully investigated by employing isotropic Eliashberg theory. The Tc values are 0.2 K, 2.3 K, and 9.0 K for Ti2CH, Ti2CH2, and Ti2CH4, respectively. The translation and libration adopted by stretch and bent vibrations contribute to the increasing Tc of Ti2CH4. The high-frequency hydrogen modes contribute to the critical temperature increase. Briefly, this work not only highlights the effect of H-content on the increments of Tc for Ti2CHx, but also demonstrates the first theoretical evidence of the existence of H-rich MXene in the example of Ti2CH4. Therefore, it potentially provides a guideline for developing hydrogenated 2D superconductive applications.
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Affiliation(s)
- P Tsuppayakorn-Aek
- Extreme Conditions Physics Research Laboratory and Center of Excellence in Physics of Energy Materials (CE:PEM), Department of Physics, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - T Bovornratanaraks
- Extreme Conditions Physics Research Laboratory and Center of Excellence in Physics of Energy Materials (CE:PEM), Department of Physics, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - R Ahuja
- Condensed Matter Theory Group, Materials Theory Division, Department of Physics and Astronomy, Uppsala University, Box 516, SE-751 20, Uppsala, Sweden.,Department of Physics, Indian Institute of Technology (IIT) Ropar, Rupnagar 140001, Punjab, India
| | - W Luo
- Condensed Matter Theory Group, Materials Theory Division, Department of Physics and Astronomy, Uppsala University, Box 516, SE-751 20, Uppsala, Sweden
| | - K Kotmool
- College of Advanced Manufacturing Innovation, King Mongkut's Institute of Technology Ladkrabang, Bangkok, 10520, Thailand.,Electronic and Optoelectronic Device Research Unit, School of Science, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, Thailand.
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16
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Cui Y, Zhu J, Tong H, Zou R. Advanced perspectives on MXene composite nanomaterials: Types synthetic methods, thermal energy utilization and 3D-printed techniques. iScience 2022; 26:105824. [PMID: 36632064 PMCID: PMC9826899 DOI: 10.1016/j.isci.2022.105824] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
MXene, 2D material, can be synthesized as single flake with 1 nm thickness by using phase change material, polymer and graphene oxide. Meanwhile, the MXene and its composite derivative materials have been applied widely in electro-to-thermal conversion, photo-to-thermal conversion, thermal energy storage, and 3D printing ink aspects. Furthermore, the forward-looking utilization of the MXene nanomaterials in hydrogen energy storage, radio frequency field application, CO2 capture and remediation of environmental pollution, is explored. This article reveals that the efficiencies of the photo-to-thermal and electro-to-thermal energy conversions with the MXene nanomaterials could reach about 80-90%. In parallel, it is demonstrated that the MXene printed ink has the excellent rheological property and high viscosity and stability of liquid, which contribute to arranging the multi-dimensional architectures with functional materials and controlling the flow rate of the MXene ink in the range of 0.03-0.15 mL/min for speedily printing and various printing structures.
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Affiliation(s)
- Yuanlong Cui
- School of Architecture and Urban Planning, Shandong Jianzhu University, 1000 Fengming Road, Jinan 250101, China,Corresponding author
| | - Jie Zhu
- Department of Architecture and Built Environment, The University of Nottingham, Nottingham NG7 2RD, UK
| | - Hui Tong
- School of Architecture and Urban Planning, Shandong Jianzhu University, 1000 Fengming Road, Jinan 250101, China
| | - Ran Zou
- School of Management Engineering, Shandong Jianzhu University, 1000 Fengming Road, Jinan 250101, China,Corresponding author
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17
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Hayat A, Sohail M, Qadeer A, Taha TA, Hussain M, Ullah S, Al-Sehemi AG, Algarni H, Amin MA, Aqeel Sarwar M, Nawawi WI, Palamanit A, Orooji Y, Ajmal Z. Recent Advancement in Rational Design Modulation of MXene: A Voyage from Environmental Remediation to Energy Conversion and Storage. CHEM REC 2022; 22:e202200097. [PMID: 36103617 DOI: 10.1002/tcr.202200097] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 08/24/2022] [Indexed: 12/14/2022]
Abstract
Use of MXenes (Ti3 C2 Tx ), which belongs to the family of two-dimensional transition metal nitrides and carbides by encompassing unique combination of metallic conductivity and hydrophilicity, is receiving tremendous attention, since its discovery as energy material in 2011. Owing to its precursor selective chemical etching, and unique intrinsic characteristics, the MXene surface properties are further classified into highly chemically active compound, which further produced different surface functional groups i. e., oxygen, fluorine or hydroxyl groups. However, the role of surface functional groups doesn't not only have a significant impact onto its electrochemical and hydrophilic characteristics (i. e., ion adsorption/diffusion), but also imparting a noteworthy effect onto its conductivity, work function, electronic structure and properties. Henceforth, such kind of inherent chemical nature, robust electrochemistry and high hydrophilicity ultimately increasing the MXene application as a most propitious material for overall environment-remediation, electrocatalytic sensors, energy conversion and storage application. Moreover, it is well documented that the role of MXenes in all kinds of research fields is still on a progress stage for their further improvement, which is not sufficiently summarized in literature till now. The present review article is intended to critically discuss the different chemical aptitudes and the diversity of MXenes and its derivates (i. e., hybrid composites) in all aforesaid application with special emphasis onto the improvement of its surface characteristics for the multidimensional application. However, this review article is anticipated to endorse MXenes and its derivates hybrid configuration, which is discussed in detail for emerging environmental decontamination, electrochemical use, and pollutant detection via electrocatalytic sensors, photocatalysis, along with membrane distillation and the adsorption application. Finally, it is expected, that this review article will open up new window for the effective use of MXene in a broad range of environmental remediation, energy conversion and storage application as a novel, robust, multidimensional and more proficient materials.
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Affiliation(s)
- Asif Hayat
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, Zhejiang PR, China.,College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
| | - Muhammad Sohail
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, 313001, China
| | - A Qadeer
- National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Chinese Research Academy of Environmental Sciences, 10012, Beijing, China
| | - T A Taha
- Physics Department, College of Science, Jouf University, P.O. Box 2014, Sakaka, Saudi Arabia.,Physics and Engineering Mathematics Department, Faculty of Electronic Engineering, Menoufia University, Menouf, 32952, Egypt
| | - Majid Hussain
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500, P. R. China
| | - Sami Ullah
- Research Center forAdv. Mater. Science(RCAMS), King Khalid University, P.O. Box 9004, Abha, 61413, Saudi Arabia.,Department of Chemistry, College of Science, King Khalid University, P.O. Box 9004, Abha, 61413, Saudi Arabia
| | - Abdullah G Al-Sehemi
- Research Center forAdv. Mater. Science(RCAMS), King Khalid University, P.O. Box 9004, Abha, 61413, Saudi Arabia.,Department of Chemistry, College of Science, King Khalid University, P.O. Box 9004, Abha, 61413, Saudi Arabia
| | - Hamed Algarni
- Research Center forAdv. Mater. Science(RCAMS), King Khalid University, P.O. Box 9004, Abha, 61413, Saudi Arabia.,Department of Physics, Faculty of Science, King Khalid University, P.O. Box 9004, Abha, 61413, Saudi Arabia
| | - Mohammed A Amin
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia
| | - Muhammad Aqeel Sarwar
- Land Resource research Institute and Crop Science Center, National Agriculture Research Center (NARC), Park Road, Islamabad, Pakistan
| | - W I Nawawi
- Faculty of Applied Sciences, Universiti Teknologi MARA, Cawangan Perlis, 02600, Arau Perlis, Malaysia
| | - Arkom Palamanit
- Energy Technology Program, Department of Specialized Engineering, Faculty of Engineering, Prince of Songkla University, 15 Karnjanavanich Rd., Hat Yai, Songkhla 90110, Thailand
| | - Yasin Orooji
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
| | - Zeeshan Ajmal
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, 710072, Xian, PR China
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18
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Sakhraoui T, Karlický F. Electronic Nature Transition and Magnetism Creation in Vacancy-Defected Ti 2CO 2 MXene under Biaxial Strain: A DFTB + U Study. ACS OMEGA 2022; 7:42221-42232. [PMID: 36440157 PMCID: PMC9686191 DOI: 10.1021/acsomega.2c05037] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Accepted: 10/31/2022] [Indexed: 05/28/2023]
Abstract
The structural, electronic, and magnetic properties of vacancy defect in Ti2CO2 MXene and the effect of strain have been investigated using the density functional tight-binding (DFTB) approach including spin-polarization with Hubbard onsite correction (DFTB + U). The band gap of pure Ti2CO2 is ∼1.3 eV, which decreases to ∼0.4 and ∼1.1 eV in the case of C- and O-vacancies, respectively, i.e., the semiconducting behavior is retained. In contrast, Ti2CO2 undergoes semiconductor-to-metal transition by the introduction of a single Ti-vacancy. This transition is the result of introduced localized states in the vicinity of the Fermi level by the vacancy. Both Ti- and O-vacancies have zero net magnetic moments. Interestingly, the nonmagnetic (NM) ground state of semiconducting Ti2CO2 turns into a magnetic semiconductor by introducing a C-vacancy with a magnetization of ∼2 μB/cell. Furthermore, we studied the effect of strain on the electronic structure and magnetic properties of Ti-, C-, and O-vacant Ti2CO2. The nature of the band gap in the presence of single O-vacancy remains indirect in both compression and tensile strain, and the size of the band gap decreases. Compression strain on Ti-vacant Ti2CO2 changes metal into a direct semiconductor, and the metallic character remains under tensile biaxial strain. In opposition, a semiconductor-to-metal transition occurs by applying a compressive biaxial strain on C-vacant Ti2CO2. We also find that the magnetism is preserved under tensile strain and suppressed under compression strain on VC-Ti2CO2. Moreover, we show that double C-vacancies maintain magnetism. Our findings provide important characteristics for the application of the most frequent MXene material and should motivate further investigations because experimentally achieved MXenes always contain point defects.
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19
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Zhi S, Wei Q, Zhang C, Yi C, Li C, Jiang Z. MXene catalytic amplification-fluorescence/absorption dimode aptamer sensor for the detection of trace Pb2+ in milk. Front Nutr 2022; 9:1008620. [PMID: 36330146 PMCID: PMC9622933 DOI: 10.3389/fnut.2022.1008620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 08/11/2022] [Indexed: 11/23/2022] Open
Abstract
Lead ion (Pb2+) is a toxic heavy metal, which is very harmful to organisms. Therefore, the establishment of a rapid, simple, and sensitive method is of great significance to food safety and human health. It was found that MXeneTi3C2 nanosheet (NS) has a strong catalytic effect on the oxidation of 3,3,5,5-tetramethylbenzidine (TMB) via H2O2 to form the oxidized product (TMBOX); it has a strong fluorescence peak at 415 nm and an absorption (Abs) peak at 295 nm. The aptamer of Pb2+ (Aptpb) can be adsorbed on the surface of an NS to form MXene-Apt conjugates, which reduces its catalytic active sites and inhibits its catalytic activity. When the target Pb2+ is added, it specifically binds with Aptpb to release MXene NSs to enhance the dimode signals. Therefore, a new MXene catalytic fluorescence/absorption dimode aptamer biosenering platform was fabricated for the determination of trace Pb2+ in milk and water samples, with the fluorescence assay linear range (LR) of 5.0 × 10−2-2.0 nmol/L.
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Affiliation(s)
- Shengfu Zhi
- School of Public Health, Guilin Medical University, Guilin, China
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin, China
| | - Qi Wei
- School of Public Health, Guilin Medical University, Guilin, China
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin, China
| | - Chi Zhang
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin, China
| | - Chenguang Yi
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin, China
| | - Chongning Li
- School of Public Health, Guilin Medical University, Guilin, China
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin, China
- *Correspondence: Chongning Li
| | - Zhiliang Jiang
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin, China
- Zhiliang Jiang
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20
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Zhi S, Shi J, Liang A, Jiang Z. MXene nanosheet loaded gold nanocluster catalytic amplification–aptamer SERS quantitative assay platform for isocarbophos. Talanta 2022; 251:123771. [DOI: 10.1016/j.talanta.2022.123771] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 07/16/2022] [Accepted: 07/22/2022] [Indexed: 11/24/2022]
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21
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Surface-Termination Groups’ Tuning to Improve the Lithium-Ion-Storage Performance of Ti3C2Tx MXene. COATINGS 2022. [DOI: 10.3390/coatings12071005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
Two-dimensional transition metal carbides/carbonitrides (MXenes) have broad application prospects in the field of energy storage due to their abundant surface functional groups, tunable interlayer spacing, and excellent electrical conductivity. However, the kinetics of Li-ion intercalation/deintercalation between MXene layers is slow, and the stacking between nanosheets due to long cycling reduces the structural stability and battery safety. Herein, we prepare and tune surface-termination groups of Ti3C2Tx MXene by chemical exfoliation and low-temperature annealing methods. The types of functional groups on the surface of the material are optimized by the substitution of oxygen to some -F functional groups on the surface. The optimized Ti3C2Tx MXene material exhibits a reversible lithium-ion-storage specific capacity of 444.1 mAh g−1 after 200 cycles at a current density of 0.1 A g−1. The increased of -O functional groups can increase the diffusion rate of Li+, promote the transport of electrons, and accelerate the kinetics of the electrode reaction, thereby improving the performance of lithium-ion storage.
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22
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Ouyang Y, Qiu L, Bai Y, Yu W, Feng Y. Synergistical Thermal Modulation Function of 2D Ti3C2 MXene Composite Nanosheets via Interfacial Structure Modification. iScience 2022; 25:104825. [PMID: 35992059 PMCID: PMC9382247 DOI: 10.1016/j.isci.2022.104825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 07/01/2022] [Accepted: 07/18/2022] [Indexed: 12/04/2022] Open
Abstract
MXene demonstrates high in-plane thermal transport merit as an emerging two-dimensional material, but its out-of-plane thermal transport did not fully explore. Here Ti3C2 MXene nanosheets with either GO or CNF fillers were fabricated by using the vacuum-assisted filtration method. It was found that the addition of GO and CNF enlarged the interlayer spacing of the MXene layers, bringing about the opportunity for changeable spatial configuration of fillers and the thermal regulation function. If the GO nanosheets were interspersed parallel to the MXene layers, strong interference of increasing oxygen-containing functional group suppresses the out-of-plane thermal transport, resulting in the thermal conductivity decreasing from 0.5 W/(m·K) to 0.31 W/(m·K) for 20 wt% GO addition. Moreover, CNFs formed out-of-plane protruding on the surface of MXene nanosheets, resulting in the thermal conductivity increasing to 0.81 W/(m·K) for 20 wt% CNF addition. This discovery navigates how to prepare MXene composites with customized thermal properties. MXene nanosheet with nanometer lateral dimensions was produced by etching Design and application of the flexible thermosensor-based third harmonic method Thermal barrier effect of interfacial oxygen-containing functional groups Thermal bridging effect of carbon nanofibers across multiple MXene nanosheets
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23
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McRae LM, Radomsky RC, Pawlik JT, Druffel DL, Sundberg JD, Lanetti MG, Donley CL, White KL, Warren SC. Sc 2C, a 2D Semiconducting Electride. J Am Chem Soc 2022; 144:10862-10869. [PMID: 35675664 DOI: 10.1021/jacs.2c03024] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Electrides are exotic materials that typically have electrons present in well-defined lattice sites rather than within atoms. Although all known electrides have an electropositive metal cation adjacent to the electride site, the effect of cation electronegativity on the properties of electrides is not yet known. Here, we examine trivalent metal carbides with varying degrees of electronegativity and experimentally synthesize Sc2C. Our studies identify the material as a two-dimensional (2D) electride, even though Sc is more electronegative than any metal previously found adjacent to an electride site. Further, by exploring Sc2C and Al2C computationally, we find that higher electronegativity of the cation drives greater hybridization between metal and electride orbitals, which opens a band gap in these materials. Sc2C is the first 2D electride semiconductor, and we propose a design rule that cation electronegativity drives the change in its band structure.
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Affiliation(s)
- Lauren M McRae
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Rebecca C Radomsky
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Jacob T Pawlik
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Daniel L Druffel
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Jack D Sundberg
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Matthew G Lanetti
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Carrie L Donley
- Chapel Hill Analytical and Nanofabrication Laboratory (CHANL), University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Kelly L White
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Scott C Warren
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
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24
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Lokhande PE, Pakdel A, Pathan HM, Kumar D, Vo DVN, Al-Gheethi A, Sharma A, Goel S, Singh PP, Lee BK. Prospects of MXenes in energy storage applications. CHEMOSPHERE 2022; 297:134225. [PMID: 35259358 DOI: 10.1016/j.chemosphere.2022.134225] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 02/26/2022] [Accepted: 03/03/2022] [Indexed: 06/14/2023]
Abstract
The transition metal carbides/nitrides referred to as MXenes has emerged as a wonder material presenting newer opportunities owing to their unique properties such as high thermal and electrical conductivity, high negative zeta-potential and mechanical properties similar to the parent transition metal carbides/nitrides. These properties of MXenes can be utilized in various societal applications including for energy storage and energy conversion. In this focused review, we provide a ready glance into the evolutionary development of the MXene family and various efforts that are made globally towards property improvement and performance enhancement. Particular attention in this review is made to direct the attention of readers to the bright prospects of MXene in the energy storage and energy conversion process - which is extremely timely to tackle the current concern on climate change. The review concludes by offering fresh insights into the future research needs and challenges that need to be addressed to develop resilient energy solutions.
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Affiliation(s)
- P E Lokhande
- Department of Physics, Savitribai Phule Pune University, Pune, 411007, India; Department of Mechanical, Manufacturing and Biomedical Engineering, Trinity College Dublin, Dublin, Ireland.
| | - Amir Pakdel
- Department of Mechanical, Manufacturing and Biomedical Engineering, Trinity College Dublin, Dublin, Ireland
| | - H M Pathan
- Department of Physics, Savitribai Phule Pune University, Pune, 411007, India
| | - Deepak Kumar
- School of Chemical Engineering and Physical Sciences, Lovely Professional University, Phagwara, 144411, India.
| | - Dai-Viet N Vo
- Center of Excellence for Green Energy and Environmental Nanomaterials (CE@GrEEN), Nguyen Tat Thanh University, Ho Chi Minh City, 755414, Viet Nam
| | - Adel Al-Gheethi
- Faculty of Civil Engineering and Built Environment (FKAAB), Universiti Tun Hussein Onn Malaysia (UTHM), 86400, Batu Pahat, Johor, Malaysia
| | - Ajit Sharma
- School of Chemical Engineering and Physical Sciences, Lovely Professional University, Phagwara, 144411, India
| | - Saurav Goel
- School of Engineering, London South Bank University, London, SE1 0 AA, UK; University of Petroleum and Energy Studies, Dehradun, 248007, India; Indian Institute of Technology Guwahati, Guwahati, 781039, India
| | | | - Byeong-Kyu Lee
- Department of Civil and Environmental Engineering, University of Ulsan, Daehak, South Korea
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25
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Density Functional Theory Study on the Influence of Cation and Anion Elements Doping on the Surface of Ti3C2 on the Adsorption Performance of Formaldehyde. Catalysts 2022. [DOI: 10.3390/catal12040387] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Based on the generalized gradient approximation of density functional theory, the geometric structure and electronic properties of the intrinsic Ti3C2 and Cu-, Pt-, Co-, Si-, F-, Cl- or Br-doped Ti3C2 are optimized, and the adsorption process of HCHO on the surface of the intrinsic Ti3C2 and doped Ti3C2 is calculated. The effects of adsorption energy, stability, DOS and doping on bond length were discussed. The results show that the adsorption energy of the intrinsic Ti3C2 crystal plane at the top site is the strongest, at −7.58 eV. The optimal adsorption sites of HCHO on various doping systems are Cu-Top, Pt-Top, Co-Top, Si-Hollow, Cl-Hollow, F-Bridge and Br-Hollow, respectively. Among the doped elements, anion (F, Cl, Br) doping at each adsorption site generally reduces the formaldehyde adsorption activity of the substrate; cationic doping (Cu, Pt, Co, Si) enhances the adsorption activity of the substrate for formaldehyde at most of the adsorption sites, indicating that the modification effect of anions on Ti3C2 is not as good as that of cations. The adsorption capacity of Si-doped Ti3C2 for formaldehyde was significantly improved. Compared with the intrinsic Ti3C2 crystal plane at the same adsorption site, the adsorption activity of HCHO was improved, and the highest adsorption energy was −8.09 eV.
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26
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A Theoretical Study of Fe Adsorbed on Pure and Nonmetal (N, F, P, S, Cl)-Doped Ti 3C 2O 2 for Electrocatalytic Nitrogen Reduction. NANOMATERIALS 2022; 12:nano12071081. [PMID: 35407199 PMCID: PMC9000748 DOI: 10.3390/nano12071081] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 03/17/2022] [Accepted: 03/23/2022] [Indexed: 11/16/2022]
Abstract
The possibility of using transition metal (TM)/MXene as a catalyst for the nitrogen reduction reaction (NRR) was studied by density functional theory, in which TM is an Fe atom, and MXene is pure Ti3C2O2 or Ti3C2O2−x doped with N/F/P/S/Cl. The adsorption energy and Gibbs free energy were calculated to describe the limiting potentials of N2 activation and reduction, respectively. N2 activation was spontaneous, and the reduction potential-limiting step may be the hydrogenation of N2 to *NNH and the desorption of *NH3 to NH3. The charge transfer of the adsorbed Fe atoms to N2 molecules weakened the interaction of N≡N, which indicates that Fe/MXene is a potential catalytic material for the NRR. In particular, doping with nonmetals F and S reduced the limiting potential of the two potential-limiting steps in the reduction reaction, compared with the undoped pure structure. Thus, Fe/MXenes doped with these nonmetals are the best candidates among these structures.
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27
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Javaid A, Latif S, Imran M, Hussain N, Bilal M, Iqbal HMN. MXene-based hybrid composites as photocatalyst for the mitigation of pharmaceuticals. CHEMOSPHERE 2022; 291:133062. [PMID: 34856238 DOI: 10.1016/j.chemosphere.2021.133062] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 11/08/2021] [Accepted: 11/22/2021] [Indexed: 02/05/2023]
Abstract
Environmental contamination is a burning issue and has gained global attention in the present era. Pharmaceuticals are emerging contaminants affecting the natural environment worldwide owing to their extensive consumption particularly in developing countries where self-medication is a common practice. These pharmaceuticals or their degraded active metabolites enter water bodies via different channels and are continuous threat to the whole ecological system. There is a dire need to find efficient approaches for their removal from all environmental matrices. Photocatalysis is one of the most effective and simple approach, however, finding a suitable photocatalyst is a challenging task. Recently, MXenes (two-dimensional transition metal carbides/nitrides), a relatively new material has attracted increasing interest as photocatalysts due to their exceptional properties, such as large surface area, appreciable safety, huge interlayer spacing, thermal conductivity, and environmental flexibility. This review describes the recent advancements of MXene-based composites and their photocatalytic potential for the elimination of pharmaceuticals. Furthermore, present limitations and future research requirements are recommended to attain more benefits of MXene-based composites for the purification of wastewater.
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Affiliation(s)
- Ayesha Javaid
- Centre for Inorganic Chemistry, School of Chemistry, University of the Punjab, Lahore, 54000, Pakistan
| | - Shoomaila Latif
- School of Physical Sciences, University of the Punjab, Lahore, 54000, Pakistan
| | - Muhammad Imran
- Centre for Inorganic Chemistry, School of Chemistry, University of the Punjab, Lahore, 54000, Pakistan
| | - Nazim Hussain
- Center for Applied Molecular Biology (CAMB), University of the Punjab, Lahore, Pakistan
| | - Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, 223003, China.
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Campus Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey, NL, CP, 64849, Mexico.
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28
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Dixit F, Zimmermann K, Dutta R, Prakash NJ, Barbeau B, Mohseni M, Kandasubramanian B. Application of MXenes for water treatment and energy-efficient desalination: A review. JOURNAL OF HAZARDOUS MATERIALS 2022; 423:127050. [PMID: 34534806 DOI: 10.1016/j.jhazmat.2021.127050] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 08/24/2021] [Accepted: 08/26/2021] [Indexed: 06/13/2023]
Abstract
MXenes are a new type of two-dimensional (2D) material which are rapidly gaining traction for a range of environmental, chemical and medical applications. MXenes and MXene-composites exhibit high surface area, superlative chemical stability, thermal conductivity, hydrophilicity and are environmentally compatible. Consequently, MXenes have been successfully employed for hydrogen storage, semiconductor manufacture and lithium ion batteries. In recent years, MXenes have been utilized in numerous environmental applications for treating contaminated surface waters, ground and industrial/ municipal wastewaters and for desalination, often outperforming conventional materials in each field. MXene-composites can adsorb multiple organic and inorganic contaminants, and undergo Faradaic capacitive deionization (CDI) when utilized for electrochemical applications. This approach allows for a significant decrease in the energy demand by overcoming the concentration polarization limitation of conventional CDI electrodes, offering a solution for low-energy desalination of brackish waters. This article presents a state-of-the-art review on water treatment and desalination applications of MXenes and MXene-composites. An investigation into the kinetics and isotherms is presented, as well as the impact of water constituents and operating conditions are also discussed. The applications of MXenes for CDI, pervaporation desalination and solar thermal desalination are also examined based on the reviewed literature. The effects of the water composition and operational protocols on the regeneration efficacy and long-term usage are also highlighted.
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Affiliation(s)
- Fuhar Dixit
- Department of Chemical and Biological Engineering, University of British Columbia, Vancouver, Canada
| | - Karl Zimmermann
- Department of Chemical and Biological Engineering, University of British Columbia, Vancouver, Canada
| | - Rahul Dutta
- Department of Civil Engineering, University of British Columbia, Vancouver, Canada
| | - Niranjana Jaya Prakash
- Nano Surface Texturing Lab, Department of Metallurgical and Materials Engineering, Defence Institute of Advanced Technology (DU), Pune, India
| | - Benoit Barbeau
- Department of Civil, Geological and Mining Engineering, Polytechnique Montreal, Quebec, Canada
| | - Madjid Mohseni
- Department of Chemical and Biological Engineering, University of British Columbia, Vancouver, Canada.
| | - Balasubramanian Kandasubramanian
- Nano Surface Texturing Lab, Department of Metallurgical and Materials Engineering, Defence Institute of Advanced Technology (DU), Pune, India.
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29
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Recent Progress Using Solid-State Materials for Hydrogen Storage: A Short Review. Processes (Basel) 2022. [DOI: 10.3390/pr10020304] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
With the rapid growth in demand for effective and renewable energy, the hydrogen era has begun. To meet commercial requirements, efficient hydrogen storage techniques are required. So far, four techniques have been suggested for hydrogen storage: compressed storage, hydrogen liquefaction, chemical absorption, and physical adsorption. Currently, high-pressure compressed tanks are used in the industry; however, certain limitations such as high costs, safety concerns, undesirable amounts of occupied space, and low storage capacities are still challenges. Physical hydrogen adsorption is one of the most promising techniques; it uses porous adsorbents, which have material benefits such as low costs, high storage densities, and fast charging–discharging kinetics. During adsorption on material surfaces, hydrogen molecules weakly adsorb at the surface of adsorbents via long-range dispersion forces. The largest challenge in the hydrogen era is the development of progressive materials for efficient hydrogen storage. In designing efficient adsorbents, understanding interfacial interactions between hydrogen molecules and porous material surfaces is important. In this review, we briefly summarize a hydrogen storage technique based on US DOE classifications and examine hydrogen storage targets for feasible commercialization. We also address recent trends in the development of hydrogen storage materials. Lastly, we propose spillover mechanisms for efficient hydrogen storage using solid-state adsorbents.
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30
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A molecularly imprinted electrochemical sensor based on cationic intercalated two-dimensional titanium carbide nanosheets for sensitive and selective detection of triclosan in food samples. Food Control 2022. [DOI: 10.1016/j.foodcont.2021.108532] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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31
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Effect of Ultrafast Broadband Nonlinear Optical Responses by Doping Silver into Ti3C2 Nanosheets at Visible Spectra. COATINGS 2022. [DOI: 10.3390/coatings12020189] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Ti3C2 nanosheet is a newly discovered two-dimensional (2D) clan. It turns out to have encouraging applications for electromagnetic shielding and energy storage. Here, Ag@ Ti3C2 hybrids are precisely synthesized by using the one-step solution processing method. Also, their ultrafast broadband nonlinear optical responses in the visible region are studied systematically through nanosecond open-aperture Z-scan and transient absorption techniques. The mechanism of two-photon absorption (TPA) is disclosed in the visible region (409–532 nm). When the laser energy is low and the wavelength is longer than 400 nm, nonlinear absorption cannot happen. Meanwhile, as the laser energy increases, two photons will be absorbed by the electrons in the valence band and the electrons will jump to the conduction band. The process is named as two-photon absorption which will make the specimen show reverse saturable absorption (RSA) properties. What is more, the ultrafast carrier dynamics of the specimen are studied by using the transient absorption. The result shows that the decay contains two phases: the fast and then the slow one. The two phases first come from electron–phonon and then from phonon–phonon interactions, respectively. The electron transfer and charge carrier trapping processes are further verified by the outcomes of similar measurements on Ag@ Ti3C2 hybrids. Besides, the two decay processes increase together with the pump fluence. These results show that Ti3C2 nanosheet has potential applications in broadband optical limiter.
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32
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Gorkan T, Arkin H, Aktürk E. Influence of doping with selected organic molecules on the magnetic and electronic properties of bare, surface terminated and defect patterned Ti 2C MXene monolayers. Phys Chem Chem Phys 2022; 24:2465-2475. [PMID: 35022630 DOI: 10.1039/d1cp04359e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In this study, based on density functional theory, we examine the interaction between the bare, F-, OH-terminated as well as defect patterned Ti2C and selected neurotransmitter (NT) and amino acids (AA) such as dopamine, glutamate, glycine and serine. We found that these molecules are dissociated at a specific location in bare Ti2C monolayers and concomitantly they form Ti-H bonds. The adsorbed molecules give rise to significant charge transfer between the adsorbates and underlying substrates and generally the electronic energy states are affected, band gaps are tuned and magnetic moments are attained significantly. In particular, the bare antiferromagnetic-Ti2C monolayer undergoes an antiferromagnetic-ferromagnetic transition upon adsorption of the amino acids and nucleobase molecules due to bond dissociation of molecules. Moreover, the electronic and magnetic properties of bare Ti2C are crucially changed in the presence of a vacancy. While pristine Ti2C is an AFM semiconductor, mono- and di-vacancy structures become ferromagnetic semiconductors. When adsorbed by molecules, the defect patterned Ti2C is spin-polarized and hence the surface results in a metallic state. We also reveal that the Ti2C structure is transformed to the non-magnetic (NM) ground state in the presence of both F- and OH-surface termination groups. When adsorbed to these organic molecules on a terminated Ti2C surface, the binding of molecules to this surface is generally weak and arises from van der Waals interactions. We determine that the binding energy of dopamine, which is absorbed on bare Ti2C in equilibrium in a solvent, was found to be 2.31 eV and the magnetic moment per supercell was reduced to 2.91μB.
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Affiliation(s)
- T Gorkan
- Department of Physics, Adnan Menderes University, 09100 Aydın, Turkey.
| | - H Arkin
- Department of Physics Engineering, Faculty of Engineering, Ankara University, 06100 Tandoğan, Ankara, Turkey
| | - E Aktürk
- Department of Physics, Adnan Menderes University, 09100 Aydın, Turkey. .,Physik Department E20, Technische Universität München, 85748 Garching, Germany
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33
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All-Optical Modulation Technology Based on 2D Layered Materials. MICROMACHINES 2022; 13:mi13010092. [PMID: 35056256 PMCID: PMC8780208 DOI: 10.3390/mi13010092] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 12/07/2021] [Accepted: 12/16/2021] [Indexed: 02/01/2023]
Abstract
In the advancement of photonics technologies, all-optical systems are highly demanded in ultrafast photonics, signal processing, optical sensing and optical communication systems. All-optical devices are the core elements to realize the next generation of photonics integration system and optical interconnection. Thus, the exploration of new optoelectronics materials that exhibit different optical properties is a highlighted research direction. The emerging two-dimensional (2D) materials such as graphene, black phosphorus (BP), transition metal dichalcogenides (TMDs) and MXene have proved great potential in the evolution of photonics technologies. The optical properties of 2D materials comprising the energy bandgap, third-order nonlinearity, nonlinear absorption and thermo-optics coefficient can be tailored for different optical applications. Over the past decade, the explorations of 2D materials in photonics applications have extended to all-optical modulators, all-optical switches, an all-optical wavelength converter, covering the visible, near-infrared and Terahertz wavelength range. Herein, we review different types of 2D materials, their fabrication processes and optical properties. In addition, we also summarize the recent advances of all-optical modulation based on 2D materials. Finally, we conclude on the perspectives on and challenges of the future development of the 2D material-based all-optical devices.
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34
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Rasheed T, Kausar F, Rizwan K, Adeel M, Sher F, Alwadai N, Alshammari FH. Two dimensional MXenes as emerging paradigm for adsorptive removal of toxic metallic pollutants from wastewater. CHEMOSPHERE 2022; 287:132319. [PMID: 34826950 DOI: 10.1016/j.chemosphere.2021.132319] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 09/04/2021] [Accepted: 09/19/2021] [Indexed: 06/13/2023]
Abstract
Effective methods for removing harmful metals from wastewater have had a huge impact on reducing freshwater scarcity. Because of its excellent removal effectiveness, simplicity and low cost at ambient conditions, adsorption is one of the most promising purifying approaches. MXene-based nanoarchitectures have proven to be effective adsorbents in a variety of harmful metal removal applications. This owes from the distinctive features such as, hydrophilicity, high surface area, electron-richness, great adsorption capacity, and activated metallic hydroxide sites of MXenes. Given the rapid advancement in the design and synthesis of MXene nanoarchitectures for water treatment, prompt updates on this research area are needed that focus on removal of toxic metal, such as production routes and characterization techniques for the advantages, merits and limitations of MXenes for toxic metal adsorption. This is in addition to the fundamentals and the adsorption mechanism tailored by the shape and composition of MXene based on some representative paradigms. Finally, the limits of MXenes are highlighted, as well as their potential future research directions for wastewater treatment. This manuscript may initiate researchers to improve unique MXene-based nanostructures with distinct compositions, shapes, and physiochemical merits for effective removal of toxic metals from wastewater.
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Affiliation(s)
- Tahir Rasheed
- Interdisciplinary Research Center for Advanced Materials, King Fahd University of Petroleum and Minerals (KFUPM), Dhahran, 31261, Saudi Arabia.
| | - Fahmeeda Kausar
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Komal Rizwan
- Department of Chemistry University of Sahiwal, Sahiwal, 57000, Pakistan
| | - Muhammad Adeel
- Faculty of Applied Engineering, IPRACS, University of Antwerp, 2020, Antwerp, Belgium
| | - Farooq Sher
- Department of Engineering, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, United Kingdom
| | - Norah Alwadai
- Department of Physics, College of Sciences, Princess Nourah bint Abdulrahman University (PNU), Riyadh 11671, Saudi Arabia
| | - Fwzah H Alshammari
- Department of Physics, University Colleges at Nairiyah, University of Hafr Al Batin (UHB), Nairiyah 31981, Saudi Arabia
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35
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Zhao J, Zhang Y, Zhang H, Wang H, Wang J. H-spilled storage to maximize the catalytic performances of Pd-based bimetals@Ti3C2Tx MXene in selective semihydrogenations. Catal Sci Technol 2022. [DOI: 10.1039/d1cy01861b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydrogen spillover is an important theme for hydrogen storage and H-involving catalytic reactions. This work shows that catalytic reactivity and selectivity can be revealed by differentiating energetic characteristics of the...
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36
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Liu J, Lu W, Lu X, Zhang L, Dong H, Li Y. Versatile Ti 3C 2T x MXene for free-radical scavenging. NANO RESEARCH 2022; 15:2558-2566. [PMID: 34518776 PMCID: PMC8427154 DOI: 10.1007/s12274-021-3751-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 07/14/2021] [Accepted: 07/16/2021] [Indexed: 05/04/2023]
Abstract
UNLABELLED MXene, as an emerging two-dimensional (2D) material with ultrathin structure and fascinating physiochemical properties, has been widely explored in broad applications. Versatile functions of MXenes are continuously explored. This work presents distinctive feature of MXene-Ti3C2T x nanosheets for free-radical (FRs) scavenging that never reported before. We demonstrated the mechanism and equation in regard to the reaction between Ti3C2T x and H2O2, which was applied to design colorimetric H2O2 strip assay with good performance. The good FRs scavenging capability of Ti3C2T x , including a series of reactive oxygen species (ROS) and reactive nitrogen species (RNS), was systemically confirmed. The antioxidation capability of Ti3C2T x for protecting cells from oxidative damage was demonstrated using the oxidative damage model of alpha mouse liver 12 (AML-12) cells. This original work provides huge opportunities for MXenes in FR-related biomedical applications. ELECTRONIC SUPPLEMENTARY MATERIAL Supplementary material (further details of the experimental procedures, investigation of the reaction between Ti3C2T x and other oxidants, the characterization of endocytosis of cells for Ti3C2T x , and the comparison of different antioxidants for scavenging free radicals) is available in the online version of this article at 10.1007/s12274-021-3751-y.
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Affiliation(s)
- Jiang Liu
- Flexible Printed Electronics Technology Center and School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055 China
| | - Wei Lu
- Flexible Printed Electronics Technology Center and School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055 China
| | - Xifeng Lu
- Department of Physiology, Health Science Center, Shenzhen University, Shenzhen, 518055 China
| | - Lu Zhang
- Flexible Printed Electronics Technology Center and School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055 China
| | - Haifeng Dong
- Marshall Laboratory of Biomedical Engineering, Research Center for Biosensor and Nanotheranostic, School of Biomedical Engineering, Shenzhen University, Shenzhen, 518055 China
| | - Yingchun Li
- Flexible Printed Electronics Technology Center and School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055 China
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37
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Parey V, Bokinala MA, Mullapudi Venkata J, Singh JK. Mechanistic insights for electrochemical reduction of CO2 into hydrocarbon fuels over O-terminated MXenes. Catal Sci Technol 2022. [DOI: 10.1039/d1cy02188e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two-dimensional (2D) transition metal carbides/nitrides (MXenes) has attracted intensive attention in electrochemical reduction of CO2 into renewable fuels and chemical feedstock. Although encouraging progress has been made so far, but...
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38
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Hieu VQ, Lam TC, Khan A, Thi Vo TT, Nguyen TQ, Doan VD, Tran DL, Le VT, Tran VA. TiO 2/Ti 3C 2/g-C 3N 4 ternary heterojunction for photocatalytic hydrogen evolution. CHEMOSPHERE 2021; 285:131429. [PMID: 34252805 DOI: 10.1016/j.chemosphere.2021.131429] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 06/23/2021] [Accepted: 07/01/2021] [Indexed: 06/13/2023]
Abstract
Photocatalytic hydrogen (H2) generation derived by water has been considered as a renewable energy to solve environmental problems and global energy crises. Thus, it is necessary to explore the most effective photocatalysts by using multi-cocatalysts, due to an intimate interaction between different components. Therefore, we already synthesized the TiO2/Ti3C2/g-C3N4 (TTC) photocatalyst from g-C3N4 and Ti3C2 MXene via a calcination technique, and applied this composite for H2 evolution. By making use of titanium atom from Ti3C2 MXene, titanium dioxide (TiO2) was in-body developed, which leads to form a close heterostructure between metallic material and semiconductors. Besides, g-C3N4 amorphous with highly surface area also contributes to harvest light irradiation during photocatalytic activity. The optimized TTC-450 heterostructure showed a super H2 generation efficiency than those of pure g-C3N4 and other samples. Besides, TTC-450 sample also exhibited great recyclability after 4 runs. The proposed mechanism illustrates the efficient movement of generated electrons in TTC system, which leads to high H2 evolution efficiency. Moreover, the obtained results consistently emphasize the TiO2/Ti3C2/g-C3N4 composite would be a unique material for H2 production and broaden applications of MXene materials.
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Affiliation(s)
- Vu Quang Hieu
- NTT Hi-Tech Institute, Nguyen Tat Thanh University, 300A Nguyen Tat Thanh, Ward 13, District 4, Ho Chi Minh City, Viet Nam
| | - Truong Chi Lam
- Institute of Environmental Sciences, Nguyen Tat Thanh University, Ho Chi Minh City, Viet Nam; Faculty of Environmental and Food Engineering, Nguyen Tat Thanh University, Ho Chi Minh City, Viet Nam
| | - Afrasyab Khan
- Institute of Engineering and Technology, Department of Hydraulics and Hydraulic and Pneumatic Systems, South Ural State University, Lenin Prospect 76, Chelyabinsk, 454080, Russian Federation
| | - Thu-Thao Thi Vo
- NTT Hi-Tech Institute, Nguyen Tat Thanh University, 300A Nguyen Tat Thanh, Ward 13, District 4, Ho Chi Minh City, Viet Nam; Institute of Environmental Sciences, Nguyen Tat Thanh University, Ho Chi Minh City, Viet Nam.
| | | | - Van Dat Doan
- The Faculty of Chemical Engineering, Industrial University of Ho Chi Minh City, Ho Chi Minh City, 70000, Viet Nam.
| | - Dai Lam Tran
- Institute for Tropical Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, Viet Nam.
| | - Van Thuan Le
- Center for Advanced Chemistry, Institute of Research and Development, Duy Tan University, Da Nang, 550000, Viet Nam; Faculty of Environmental and Chemical Engineering, Duy Tan University, Danang, 550000, Viet Nam.
| | - Vy Anh Tran
- Faculty of Environmental and Chemical Engineering, Duy Tan University, Danang, 550000, Viet Nam; Institute of Research and Development, Duy Tan University, Danang, 550000, Viet Nam.
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39
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Ferrara C, Gentile A, Marchionna S, Quinzeni I, Fracchia M, Ghigna P, Pollastri S, Ritter C, Vanacore GM, Ruffo R. The Missing Piece: The Structure of the Ti 3C 2T x MXene and Its Behavior as Negative Electrode in Sodium Ion Batteries. NANO LETTERS 2021; 21:8290-8297. [PMID: 34553949 PMCID: PMC8517972 DOI: 10.1021/acs.nanolett.1c02809] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 09/14/2021] [Indexed: 06/13/2023]
Abstract
The most common MXene composition Ti3C2Tx (T = F, O) shows outstanding stability as anode for sodium ion batteries (100% of capacity retention after 530 cycles with charge efficiency >99.7%). However, the reversibility of the intercalation/deintercalation process is strongly affected by the synthesis parameters determining, in turn, significant differences in the material structure. This study proposes a new approach to identify the crystal features influencing the performances, using a structural model built with a multitechnique approach that allows exploring the short-range order of the lamella. The model is then used to determine the long-range order by inserting defective elements into the structure. With this strategy it is possible to fit the MXene diffraction patterns, obtain the structural parameters including the stoichiometric composition of the terminations (neutron data), and quantify the structural disorder which can be used to discriminate the phases with the best electrochemical properties.
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Affiliation(s)
- Chiara Ferrara
- Dipartimento
di Scienza dei Materiali, Università
degli Studi di Milano Bicocca, via Cozzi 55, 20125 Milano, Italy
- National
Reference Center for Electrochemical Energy Storage (GISEL)- Consorzio Interuniversitario Nazionale per la Scienza
e Tecnologia dei Materiali (INSTM), via Giusti 9, 50121 Firenze, Italy
| | - Antonio Gentile
- Dipartimento
di Scienza dei Materiali, Università
degli Studi di Milano Bicocca, via Cozzi 55, 20125 Milano, Italy
| | - Stefano Marchionna
- Ricerca
sul Sistema Energetico - RSE S.p.A., Via R. Rubattino 54, 20134 Milano, Italy
| | - Irene Quinzeni
- Ricerca
sul Sistema Energetico - RSE S.p.A., Via R. Rubattino 54, 20134 Milano, Italy
| | - Martina Fracchia
- Dipartimento
di Chimica, Università degli Studi
di Pavia, via Taramelli 12, 27100, Pavia, Italy
| | - Paolo Ghigna
- Dipartimento
di Chimica, Università degli Studi
di Pavia, via Taramelli 12, 27100, Pavia, Italy
- INSTM,
Consorzio Interuniversitario per la Scienza e Tecnologia dei Materiali, via Giusti 9, I-50121 Firenze, Italy
| | | | - Clemens Ritter
- Institut
Laue-Langevin, 71 avenue
des Martyrs CS 20156, 38042 Grenoble, Cedex 9, France
| | - Giovanni Maria Vanacore
- Dipartimento
di Scienza dei Materiali, Università
degli Studi di Milano Bicocca, via Cozzi 55, 20125 Milano, Italy
| | - Riccardo Ruffo
- Dipartimento
di Scienza dei Materiali, Università
degli Studi di Milano Bicocca, via Cozzi 55, 20125 Milano, Italy
- National
Reference Center for Electrochemical Energy Storage (GISEL)- Consorzio Interuniversitario Nazionale per la Scienza
e Tecnologia dei Materiali (INSTM), via Giusti 9, 50121 Firenze, Italy
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40
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Investigation of MXenes Oxidation Process during SPS Method Annealing. MATERIALS 2021; 14:ma14206011. [PMID: 34683603 PMCID: PMC8537654 DOI: 10.3390/ma14206011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 10/07/2021] [Accepted: 10/11/2021] [Indexed: 02/04/2023]
Abstract
This paper discusses the effects of the environment and temperature of the Ti3C2 (MXene) oxidation process. The MXene powders were annealed at temperatures of 1000, 1200, 1400, 1600, and 1800 °C in argon and vacuum using a Spark Plasma Sintering (SPS) furnace. The purpose of the applied annealing method was to determine the influence of a high heating rate on the MXene degradation scheme. Additionally, to determine the thermal stability of MXene during the sintering of SiC matrix composites, SiC-C-B-Ti3C2 powder mixtures were also annealed. The process parameters were as follows: Temperatures of 1400 and 1600 °C, and pressure of 30 MPa in a vacuum. Observations of the microstructure showed that, due to annealing of the SiC-C-B-Ti3C2 powder mixtures, porous particles are formed consisting of TiC, Ti3C2sym, and amorphous carbon. The formation of porous particles is a transitional stage in the formation of disordered carbon structures.
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41
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The Improvement in Hydrogen Storage Performance of MgH 2 Enabled by Multilayer Ti 3C 2. MICROMACHINES 2021; 12:mi12101190. [PMID: 34683241 PMCID: PMC8541418 DOI: 10.3390/mi12101190] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 09/23/2021] [Accepted: 09/26/2021] [Indexed: 11/17/2022]
Abstract
MgH2 has become a hot spot in the research of hydrogen storage materials, due to its high theoretical hydrogen storage capacity. However, the poor kinetics and thermodynamic properties of hydrogen absorption and desorption seriously hinder the development of this material. Ti-based materials can lead to good effects in terms of reducing the temperature of MgH2 in hydrogen absorption and desorption. MXene is a novel two-dimensional transition metal carbide or carbonitride similar in structure to graphene. Ti3C2 is one of the earliest and most widely used MXenes. Single-layer Ti3C2 can only exist in solution; in comparison, multilayer Ti3C2 (ML-Ti3C2) also exists as a solid powder. Thus, ML-Ti3C2 can be easily composited with MgH2. The MgH2+ML-Ti3C2 composite hydrogen storage system was successfully synthesized by ball milling. The experimental results show that the initial desorption temperature of MgH2-6 wt.% ML-Ti3C2 is reduced to 142 °C with a capacity of 6.56 wt.%. The Ea of hydrogen desorption in the MgH2-6 wt.% ML-Ti3C2 hydrogen storage system is approximately 99 kJ/mol, which is 35.3% lower than that of pristine MgH2. The enhancement of kinetics in hydrogen absorption and desorption by ML-Ti3C2 can be attributed to two synergistic effects: one is that Ti facilitates the easier dissociation or recombination of hydrogen molecules, while the other is that electron transfer generated by multivalent Ti promotes the easier conversion of hydrogen. These findings help to guide the hydrogen storage properties of metal hydrides doped with MXene.
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42
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Su Y, Song M, Wang X, Jiang J, Si X, Zhao T, Qian P. System Theoretical Study on the Effect of Variable Nonmetallic Doping on Improving Catalytic Activity of 2D-Ti 3C 2O 2 for Hydrogen Evolution Reaction. NANOMATERIALS 2021; 11:nano11102497. [PMID: 34684940 PMCID: PMC8539186 DOI: 10.3390/nano11102497] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 09/17/2021] [Accepted: 09/19/2021] [Indexed: 12/03/2022]
Abstract
2D MXenes have been found to be one of the most promising catalysts for hydrogen evolution reaction (HER) due to their excellent electronic conductivity, hydrophilic nature, porosity and stability. Nonmetallic (NM) element doping is an effective approach to enhance the HER catalytic performance. By using the density functional theory (DFT) method, we researched the effect of nonmetallic doping (different element types, variable doping concentrations) and optimal hydrogen absorption concentration on the surface of NM-Ti3C2O2 for HER catalytic activity and stability. The calculation results show that doping nonmetallic elements can improve their HER catalytic properties; the P element dopants catalyst especially exhibits remarkable HER performance (∆GH = 0.008 eV when the P element doping concentration is 100% and the hydrogen absorption is 75%). The origin mechanism of the regulation of doping on stability and catalytic activity was analyzed by electronic structures. The results of this work proved that by controlling the doping elements and their concentrations we can tune the catalytic activity, which will accelerate the further research of HER catalysts.
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43
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Zhang S, Zhuo H, Li S, Bao Z, Deng S, Zhuang G, Zhong X, Wei Z, Yao Z, Wang JG. Effects of surface functionalization of mxene-based nanocatalysts on hydrogen evolution reaction performance. Catal Today 2021. [DOI: 10.1016/j.cattod.2020.02.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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44
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Liu S, Liu J, Liu X, Shang J, Xu L, Yu R, Shui J. Hydrogen storage in incompletely etched multilayer Ti 2CT x at room temperature. NATURE NANOTECHNOLOGY 2021; 16:331-336. [PMID: 33398176 DOI: 10.1038/s41565-020-00818-8] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Accepted: 11/06/2020] [Indexed: 05/21/2023]
Abstract
Hydrogen storage materials are the key to hydrogen energy utilization. However, current materials can hardly meet the storage capacity and/or operability requirements of practical applications. Here we report an advancement in hydrogen storage performance and related mechanism based on a hydrofluoric acid incompletely etched MXene, namely, a multilayered Ti2CTx (T is a functional group) stack that shows an unprecedented hydrogen uptake of 8.8 wt% at room temperature and 60 bar H2. Even under completely ambient conditions (25 °C, 1 bar air), Ti2CTx is still able to retain ~4 wt% hydrogen. The hydrogen storage is stable and reversible in the material, and the hydrogen release is controllable by pressure and temperature below 95 °C. The storage mechanism is deduced to be a nanopump-effect-assisted weak chemisorption in the sub-nanoscale interlayer space of the material. Such a storage approach provides a promising strategy for designing practical hydrogen storage materials.
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Affiliation(s)
- Shiyuan Liu
- School of Materials Science and Engineering, Beihang University, Beijing, China
| | - Jieyuan Liu
- School of Materials Science and Engineering, Beihang University, Beijing, China
| | - Xiaofang Liu
- School of Materials Science and Engineering, Beihang University, Beijing, China
| | - Jiaxiang Shang
- School of Materials Science and Engineering, Beihang University, Beijing, China
| | - Li Xu
- State Grid Smart Grid Research Institute, Future Science and Technology City, Beijing, China
| | - Ronghai Yu
- School of Materials Science and Engineering, Beihang University, Beijing, China
| | - Jianglan Shui
- School of Materials Science and Engineering, Beihang University, Beijing, China.
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45
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Jawaid A, Hassan A, Neher G, Nepal D, Pachter R, Kennedy WJ, Ramakrishnan S, Vaia RA. Halogen Etch of Ti 3AlC 2 MAX Phase for MXene Fabrication. ACS NANO 2021; 15:2771-2777. [PMID: 33502839 DOI: 10.1021/acsnano.0c08630] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
The versatile property suite of two-dimensional MXenes is driving interest in various applications, including energy storage, electromagnetic shielding, and conductive coatings. Conventionally, MXenes are synthesized by a wet-chemical etching of the parent MAX-phase in HF-containing media. The acute toxicity of HF hinders scale-up, and competing surface hydrolysis challenges control of surface composition and grafting methods. Herein, we present an efficient, room-temperature etching method that utilizes halogens (Br2, I2, ICl, IBr) in anhydrous media to synthesize MXenes from Ti3AlC2. A radical-mediated process depends strongly on the molar ratio of the halogen to MAX phase, absolute concentration of the halogen, the solvent, and temperature. This etching method provides opportunities for controlled surface chemistries to modulate MXene properties.
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Affiliation(s)
- Ali Jawaid
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433-7702, United States
- UES Inc., Beavercreek, Ohio 45432, United States
| | - Asra Hassan
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433-7702, United States
- Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Tallahassee, Florida 32310, United States
| | - Gregory Neher
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433-7702, United States
- Universal Technology Corporation, Beavercreek, Ohio 45432, United States
| | - Dhriti Nepal
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433-7702, United States
| | - Ruth Pachter
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433-7702, United States
| | - W Joshua Kennedy
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433-7702, United States
| | - Subramanian Ramakrishnan
- Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Tallahassee, Florida 32310, United States
| | - Richard A Vaia
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433-7702, United States
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46
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Ahmed Z, Rehman F, Ali U, Ali A, Iqbal M, Thebo KH. Recent Advances in MXene‐based Separation Membranes. CHEMBIOENG REVIEWS 2021. [DOI: 10.1002/cben.202000026] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Zubair Ahmed
- Shah Abdul Latif University Khairpur Mir's Institute of Chemistry 66020 Khairpur Sindh Pakistan
| | - Faisal Rehman
- The Sukkur IBA University Department of Electrical Engineering 65200 Sukkur Sindh Pakistan
| | - Umeed Ali
- Shah Abdul Latif University Khairpur Mir's Institute of Chemistry 66020 Khairpur Sindh Pakistan
| | - Akbar Ali
- Shah Abdul Latif University Khairpur Mir's Institute of Chemistry 66020 Khairpur Sindh Pakistan
- Chinese Academy of Sciences CAS State Key Laboratory of Multi-phase Complex Systems Institute of Process Engineering 100190 Beijing China
| | - Muzaffar Iqbal
- The university of Haripur Kpk Department of Chemistry Faculty of Natural Science 22620 Haripur Pakistan
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47
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Wang H, Jing Z, Liu H, Feng X, Meng G, Wu K, Cheng Y, Xiao B. A high-throughput assessment of the adsorption capacity and Li-ion diffusion dynamics in Mo-based ordered double-transition-metal MXenes as anode materials for fast-charging LIBs. NANOSCALE 2020; 12:24510-24526. [PMID: 33320160 DOI: 10.1039/d0nr05828a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Utilizing the latest SCAN-rVV10 density functional, we thoroughly assess the electrochemical properties of 35 Mo-based ordered double transition metal MXenes, including clean Mo2MC2 (M = Sc, Ti, V, Zr, Nb, Hf, Ta) and surface functionalized structures Mo2MC2T2 (T = H, O, F and OH), for the potential use as anode materials in lithium ion batteries (LIBs). The first principles molecular dynamics simulations in combination with the calculations of the site adsorption preferences for Li atoms on all investigated MXenes reveal that both Li-saturated adsorption structures and theoretical capacities of Mo-based MXenes are fundamentally influenced by the surface terminations. We find that the adsorption of Li atoms on either -OH or -F functionalized MXenes is chemically unstable. In particular, the F-groups prefer to form a separate fluoride layer with Li atoms, detaching from the Mo2MC2 substrates. The Li atoms could form a stable single adsorption layer on the -H, -O and intrinsic MXenes surface, exhibiting theoretical capacities in the range from 121 mA h g-1 to 195 mA h g-1. Besides -F and -OH terminations, the remaining Mo-based MXenes also possess superior flat open circuit voltage (OCV) profiles with the most reversible storage capacity below 1.0 V during the charging/discharging cycles. We further predict the low barrier heights of Li-ion diffusion, at a range of 0.03-0.06 eV for most Mo-based MXenes except -O and -H terminations, exceeding that of graphene or Ti3C2. Furthermore, combining the Vineyard transition state theory (TST) with the phonon spectra obtained from density functional perturbation theory (DFPT), the mean planar diffusion coefficient is calculated to be 2 × 10-8 m2 s-1 at 300 K for intrinsic Mo2MC2 monolayers. Although the overall specific capacity is fundamentally restricted with the relatively heavy molecular mass of MXenes, we conclude that Mo-based structures, especially the intrinsic Mo2MC2 (M = Sc, Ti, V) monolayers, might be promising anode materials from the aspect of fast charging/discharging application for LIBs.
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Affiliation(s)
- Hangyu Wang
- School of Electrical Engineering, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049, China.
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48
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Shao Y, Chen C, He Q, Wu W, Li C, Gao Y. Broadband Visible Nonlinear Absorption and Ultrafast Dynamics of the Ti 3C 2 Nanosheet. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2544. [PMID: 33348761 PMCID: PMC7767056 DOI: 10.3390/nano10122544] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 12/15/2020] [Accepted: 12/16/2020] [Indexed: 12/27/2022]
Abstract
The Ti3C2 nanosheet, as a new two-dimensional (2D) group, has been found to have attractive characteristics as material for electromagnetic shielding and energy storage. In this study, the nonlinear broadband absorption and ultrafast dynamics of the Ti3C2 nanosheet were investigated using nanosecond open-aperture Z-scan and transient absorption techniques. The mechanism of two-photon absorption (TPA) was revealed in the visible region (475-700 nm). At lower incident energies, nonlinear absorption could not happen. When the laser energy increased to 0.64 GW/cm2, electrons in the valence band could absorb two photons and jump to the conduction band, with TPA occurring, which meant that the sample exhibited reverse saturable absorption (RSA). In addition, when transient absorption was used to investigate the ultrafast carrier dynamics of the sample, it demonstrated that the relaxation contains a fast decay component and a slow one, which are obtained from electron-phonon and phonon-phonon interactions, respectively. Moreover, with the increasing pump fluence, the fast decay lifetime τ1 increased from 3.9 to 4.5 ps, and the slow one τ2 increased from 11.1 to 13.2 ps. These results show that the Ti3C2 nanosheet has potential applications in broadband optical limiters.
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Affiliation(s)
- Yabin Shao
- Electronic Engineering College, Heilongjiang University, Harbin 150080, China; (Y.S.); (W.W.)
- Department of Computer & Electrical Engineering, East University of Heilongjiang, Harbin 150086, China;
| | - Chen Chen
- Department of Computer & Electrical Engineering, East University of Heilongjiang, Harbin 150086, China;
| | - Qing He
- Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 100083, China;
| | - Wenzhi Wu
- Electronic Engineering College, Heilongjiang University, Harbin 150080, China; (Y.S.); (W.W.)
| | - Chensha Li
- School of Chemistry and Material Sciences, Heilongjiang University, Harbin 150080, China;
| | - Yachen Gao
- Electronic Engineering College, Heilongjiang University, Harbin 150080, China; (Y.S.); (W.W.)
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49
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Luo K, Zha XH, Huang Q, Lin CT, Yang M, Zhou S, Du S. First-principles study of magnetism in some novel MXene materials. RSC Adv 2020; 10:44430-44436. [PMID: 35517132 PMCID: PMC9058502 DOI: 10.1039/d0ra03643a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 11/06/2020] [Indexed: 11/21/2022] Open
Abstract
Magnetic two-dimensional materials have gained considerable attention in recent years due to their special topologies and promising applications in electronic and spintronic devices. As a new family of two-dimensional materials, MXene materials may have unusual magnetic properties. In this work, the structural stabilities and electronic properties of 1H and 1T type pristine M2C (M = Sc, Ti, Fe, Co, Ni, Cu, Zn) MXenes with different magnetic configurations were calculated and compared. The critical temperatures of the magnetic MXenes were evaluated through Monte Carlo simulations using the spin–exchange coupling parameters. The results suggest that the ground-state 1T-Ti2C and 1T-Fe2C, 1H-Co2C MXenes are antiferromagnetic or ferromagnetic materials with high Néel or Curie temperatures. Different from the other pristine M2C MXenes with metallic properties, indirect band gaps were found for the 1T-Ti2C and 1T-Ni2C MXenes, which may be useful for their application in information storage or sensors. The findings are expected to promote the development of novel devices based on MXenes and their magnetic properties. Magnetic two-dimensional materials have gained considerable attention due to their special topologies and promising applications in electronic and spintronic devices, and the critical temperature could be evaluated through Monte Carlo simulations.![]()
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Affiliation(s)
- Kan Luo
- School of Chemical Engineering, East China University of Science and Technology Shanghai China .,Engineering Laboratory of Advanced Energy Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences Ningbo Zhejiang China
| | - Xian-Hu Zha
- Center for Quantum Computing, Peng Cheng Laboratory Shenzhen China
| | - Qing Huang
- Engineering Laboratory of Advanced Energy Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences Ningbo Zhejiang China
| | - Cheng-Te Lin
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Engineering and Technology, Chinese Academy of Sciences Ningbo Zhejiang China
| | - Minghui Yang
- Engineering Laboratory of Advanced Energy Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences Ningbo Zhejiang China
| | - Shenghu Zhou
- School of Chemical Engineering, East China University of Science and Technology Shanghai China
| | - Shiyu Du
- Engineering Laboratory of Advanced Energy Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences Ningbo Zhejiang China
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50
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Zhang Y, Zha XH, Luo K, Qin Y, Bai X, Xu J, Lin CT, Huang Q, Du S. Theoretical study on the electrical and mechanical properties of MXene multilayer structures through strain regulation. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2020.137997] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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